3216542099 has 4 divisors (see below), whose sum is σ = 3217382064. Its totient is φ = 3215702136.

The previous prime is 3216542093. The next prime is 3216542101. The reversal of 3216542099 is 9902456123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3216542099 - 2⁴ = 3216542083 is a prime.

It is a super-2 number, since 2×3216542099² = 20692286149278651602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3216542093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414212 + ... + 421905.

It is an arithmetic number, because the mean of its divisors is an integer number (804345516).

Almost surely, 2^3216542099 is an apocalyptic number.

3216542099 is a deficient number, since it is larger than the sum of its proper divisors (839965).

3216542099 is an equidigital number, since it uses as much as digits as its factorization.

3216542099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839964.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 3216542099 is about 56714.5669030453. The cubic root of 3216542099 is about 1476.1474704423.

The spelling of 3216542099 in words is "three billion, two hundred sixteen million, five hundred forty-two thousand, ninety-nine".